diff --git a/release/scripts/startup/bl_operators/wm.py b/release/scripts/startup/bl_operators/wm.py
index 6d47fef371c..11d102399af 100644
--- a/release/scripts/startup/bl_operators/wm.py
+++ b/release/scripts/startup/bl_operators/wm.py
@@ -1245,12 +1245,15 @@ class WM_OT_doc_view_manual(Operator):
     def _find_reference(rna_id, url_mapping, *, verbose=True):
         if verbose:
             print("online manual check for: '%s'... " % rna_id)
-        from fnmatch import fnmatchcase
+        # from fnmatch import fnmatchcase
+        from _bpy import fnmatch_fast
+
         # XXX, for some reason all RNA ID's are stored lowercase
         # Adding case into all ID's isn't worth the hassle so force lowercase.
         rna_id = rna_id.lower()
         for pattern, url_suffix in url_mapping:
-            if fnmatchcase(rna_id, pattern):
+            # if fnmatchcase(rna_id, pattern):
+            if fnmatch_fast(rna_id, pattern, casefold=False):
                 if verbose:
                     print("            match found: '%s' --> '%s'" % (pattern, url_suffix))
                 return url_suffix
diff --git a/source/blender/python/intern/bpy.c b/source/blender/python/intern/bpy.c
index 36d53d69eff..bbddda7271b 100644
--- a/source/blender/python/intern/bpy.c
+++ b/source/blender/python/intern/bpy.c
@@ -13,6 +13,7 @@
 
 #include <Python.h>
 
+#include "BLI_fnmatch.h"
 #include "BLI_string.h"
 #include "BLI_string_utils.h"
 #include "BLI_utildefines.h"
@@ -205,6 +206,48 @@ static PyObject *bpy_flip_name(PyObject *UNUSED(self), PyObject *args, PyObject
   return result;
 }
 
+PyDoc_STRVAR(bpy_fnmatch_fast_doc,
+             ".. function:: fnmatch_fast(filename, pattern, casefold=True, exact=False)\n"
+             "\n"
+             "   TODO."
+             "\n"
+             "   :arg filename: The name to match.\n"
+             "   :type filename: string\n"
+             "   :arg pattern: Unix style glob pattern.\n"
+             "   :type pattern: bool\n"
+             "   :return: True when the pattern matches.\n"
+             "   :rtype: boolean\n");
+static PyObject *bpy_fnmatch_fast(PyObject *UNUSED(self), PyObject *args, PyObject *kw)
+{
+  const char *filename = NULL;
+  const char *pattern = NULL;
+  bool casefold = true;
+
+  int fnmatch_flags = 0;
+
+  static const char *_keywords[] = {"", "", "casefold", NULL};
+  static _PyArg_Parser _parser = {
+      "s"  /* `filename` */
+      "s"  /* `pattern` */
+      "|$" /* Optional, keyword only arguments. */
+      "O&" /* `casefold` */
+
+      ":fnmatch_fast",
+      _keywords,
+      0,
+  };
+  if (!_PyArg_ParseTupleAndKeywordsFast(
+          args, kw, &_parser, &filename, &pattern, PyC_ParseBool, &casefold)) {
+    return NULL;
+  }
+  if (casefold) {
+    fnmatch_flags |= FNM_CASEFOLD;
+  }
+
+  /* Success. */
+  return PyBool_FromLong(fnmatch(pattern, filename, fnmatch_flags) == 0);
+}
+
 // PyDoc_STRVAR(bpy_user_resource_doc[] = /* now in bpy/utils.py */
 static PyObject *bpy_user_resource(PyObject *UNUSED(self), PyObject *args, PyObject *kw)
 {
@@ -556,6 +599,10 @@ static PyMethodDef bpy_methods[] = {
      METH_VARARGS | METH_KEYWORDS,
      bpy_blend_paths_doc},
     {"flip_name", (PyCFunction)bpy_flip_name, METH_VARARGS | METH_KEYWORDS, bpy_flip_name_doc},
+    {"fnmatch_fast",
+     (PyCFunction)bpy_fnmatch_fast,
+     METH_VARARGS | METH_KEYWORDS,
+     bpy_fnmatch_fast_doc},
     {"user_resource", (PyCFunction)bpy_user_resource, METH_VARARGS | METH_KEYWORDS, NULL},
     {"system_resource",
      (PyCFunction)bpy_system_resource,